Weinen, Klagen, Sorgen, Zagen, BWV 12: I. Sinfonia

Recording identifiers

ISRC

FRZ140339010

Release date of the album this recording appears on

2003

CopyrightID (CopyrightChains transaction hash)

0xef23a2ea98f3a6e75954fa4d38d63bf6af7ff651b149c6211d0a77b7c23e90cc

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T19:11:09Z

Bitcoin block

960296

Canonical record hash

sha256:415564384e3580d345a9a4ae86feda11a690d32adb9545bb27a55b9856c1b0ef

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC FRZ140339010

What this proof establishes

This recording was released in 2003, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.